################################
	# Set up your environment here #
	################################
PREFIX := /cygdrive/d/CS8900/Quartus_Project/cpu_sdk/uClinux
ifndef PREFIX
	@echo -e "PREFIX MUST be defined, such as /opt/uClinux\n"
endif
ifndef USERLAND_DIR
	USERLAND_DIR := $(PREFIX)/userland
endif

ifndef ROMFSDIR
ROMFSDIR = $(PREFIX)/target
endif

##########################################################################
# niosgnu is defined by the Cygwin envronment. In the Linux environment, #
# niosgnu is the same as PREFIX. Also, the Cygwin environment requires   #
# executable files to have the .exe suffix, which Linux does no require. #
##########################################################################
ifndef niosgnu
	EXECSUFFIX :=
else
	EXECSUFFIX := .exe
endif


			###############
			# Tool Macros #
			###############
CROSS       := nios-elf-
CC          := $(CROSS)gcc
CXX         := $(CROSS)g++
AR          := $(CROSS)ar
LD          := $(CROSS)ld
NM          := $(CROSS)nm
RANLIB      := $(CROSS)ranlib
STRIPTOOL   := $(CROSS)strip
ELF2FLT     := $(PREFIX)/tools/flat/elf2flt
FLATDUMP    := $(PREFIX)/tools/flat/flat_dump
ROMFSINST  := $(PREFIX)/tools/scripts/romfs-inst.sh

			##############
			# DIM - Vars #
			##############
CPP = yes
THREADS = yes
SHAREABLE = no
IDIR = ./dim
MAKE = make
EXTRALIBS =
FLAGS =
LIBFLAGS =


			####################
			# Lib Paths & Libs #
			####################
LIBGCCDIR   := $(shell $(CC) -print-file-name=m32)
LIBCDIR     := $(PREFIX)/uClibc/lib
LIBMDIR	    := $(shell $(CC) -m32 -print-file-name=libm.a |sed s/libm.a//g)


			###############
			# Tools Flags #
			###############
DEBUG_FLAGS    := -g
#WARNING_FLAGS  := -Wall -Wstrict-prototypes
WARNING_FLAGS  := -Wall
CFLAGS := -mno-zero-extend -c -m32 -O2 -fno-strength-reduce -nostdinc -funaligned-struct-hack -Wall
CFLAGS += $(FLAGS) -I$(LIBCDIR)/../include -I$(LIBGCCDIR)/../include -I$(IDIR)
CFLAGS += -D__linux__ -D__VFORK_MACRO__ 
CFLAGS += -DMIPSEL -DPROTOCOL=1
CFLAGS += -Dunix -Dlinux
# Auto-dependency flags: -MM : ignore system includes, -M : include system includes in the dependency
DEPFLAGS = -E -MM

LDRELOC     := -T $(USERLAND_DIR)/linkReloc.ld -r -d
LDLOC       := -T $(USERLAND_DIR)/linkLoc.ld

#CROSS_LDFLAGS := -L- -L$(LIBCDIR) -L$(LIBGCCDIR) -L$(LIBMDIR)
CROSS_LDFLAGS := -L$(LIBCDIR) -L$(LIBGCCDIR) -L$(LIBMDIR)
CROSS_LDLIBS := -lc -lgcc -lm

ifneq ($(SHAREABLE),no)
	SHAREABLE = yes
	LIBFLAGS += -shared
endif
ifneq ($(THREADS),yes)
	CFLAGS += -DNOTHREADS
endif


#############################################################################################
# not in use due to makefile_dim, where the rules are defined
#############################################################################################

			##############################
			# Implicit Rules Definitions #
			##############################

#
# Make a relocatable flat file from an ELF file.
# STACKSIZE is defined by individual makefiles.
#
#%.relocbflt : %.relocelf
#	$(ELF2FLT)  -s $(STACKSIZE) -o $@ $<
#	$(FLATDUMP) -v $@

#
# Make a bound-address ELF file required by GDB for debugging the application.
#
#%.abself : %.o
#	$(LD) $(LDLOC) -Ttext 0x1000000 -o $@ $^ $(CROSS_LDFLAGS) $(CROSS_LDLIBS)

#
# Make a relocatable ELF file.
#
#%.relocelf : %.o
#	$(LD) $(LDRELOC) -o $@ $^ $(CROSS_LDFLAGS) $(CROSS_LDLIBS)
#	$(LD) $(LDLOC) -Ttext 0x1000000 -o $(subst relocelf,abself, $@) $^ $(CROSS_LDFLAGS) $(CROSS_LDLIBS)

#
# Standard stuff: The object file is dependent on the C source and Makefile timestamps
#
#%.o : %.c Makefile
#	$(CC) $(CFLAGS) $(DEBUG_FLAGS) $(WARNING_FLAGS) -o $@ $<

#%.o : %.cpp Makefile
#	$(CC) $(CFLAGS) $(DEBUG_FLAGS) $(WARNING_FLAGS) -o $@ $<

#
# Automatically generate dependencies for the .c source files.
# Be sure to omitt debug-level flags as this can produce macro def'n output.
# The sed "script" makes the .d (in addition to the .c) file a
# target of the dependencies so that the .d file is rebuild if required.
# e.g. "X.o: <dependency-list>" gets transformed into "X.o X.d: <dependency-list>"
#
#%.d: %.c
#	$(SHELL) -ec '$(CC) $(DEPFLAGS) $(CFLAGS) -c $< | sed '\''s/\($*\)\.o[ :]*/\1.o $@ : /g'\'' >$@; [ -s $@ ] || rm -f $@'